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Color Octet Contributions To J Psi Photoproduction
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Book Synopsis Color Octet Contributions to J/ψ-photoproduction [J-psi-photoproduction] by : Matteo Cacciari
Download or read book Color Octet Contributions to J/ψ-photoproduction [J-psi-photoproduction] written by Matteo Cacciari and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Octet Contributions to J/_y63-photoproduction [J-psi-photoproduction] by : Matteo Cacciari
Download or read book Color Octet Contributions to J/_y63-photoproduction [J-psi-photoproduction] written by Matteo Cacciari and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Singlet and Color Octet Contributions to J-ψ-photoproduction [J-psi-photoproduction] by : Michael Krämer
Download or read book Color Singlet and Color Octet Contributions to J-ψ-photoproduction [J-psi-photoproduction] written by Michael Krämer and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Octet Contributions to J/ψ-photoproduction [J-psi-photoproduction] Via Fragmentation at HERA by : B. A. Kniehl
Download or read book Color Octet Contributions to J/ψ-photoproduction [J-psi-photoproduction] Via Fragmentation at HERA written by B. A. Kniehl and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color-singlet and Color-octet Contributions to J/[psi] Photoproduction by :
Download or read book Color-singlet and Color-octet Contributions to J/[psi] Photoproduction written by and published by . This book was released on 1998 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Singlet and Color Octet Contributions to J-_y63-photoproduction [J-psi-photoproduction] by : Michael Krämer
Download or read book Color Singlet and Color Octet Contributions to J-_y63-photoproduction [J-psi-photoproduction] written by Michael Krämer and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Octet Contributions to J/_y63-photoproduction [J-psi-photoproduction] Via Fragmentation at HERA by : Bernd A. Kniehl
Download or read book Color Octet Contributions to J/_y63-photoproduction [J-psi-photoproduction] Via Fragmentation at HERA written by Bernd A. Kniehl and published by . This book was released on 1997 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Octet Contribution to J/ψ [J-psi] Photoproduction Asymmetries by : George Japaridze
Download or read book Color Octet Contribution to J/ψ [J-psi] Photoproduction Asymmetries written by George Japaridze and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Octet Contribution to J/psi Photoproduction Asymmetries by :
Download or read book Color Octet Contribution to J/psi Photoproduction Asymmetries written by and published by . This book was released on 1999 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Color Octet Contribution to J/_y63 [J-psi] Photoproduction Asymmetries by : George Japaridze
Download or read book Color Octet Contribution to J/_y63 [J-psi] Photoproduction Asymmetries written by George Japaridze and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resummation of Large Endpoint Corrections to Color-Octet J/psi Photoproduction by :
Download or read book Resummation of Large Endpoint Corrections to Color-Octet J/psi Photoproduction written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An unresolved problem in J/[psi] phenomenology is a systematic understanding of the differential photoproduction cross section, d[sigma]/dz [[gamma] + p → J/[psi] + X], where z = E{sub [psi]}/E{sub {gamma}} in the proton rest frame. In the non-relativistic QCD (NRQCD) factorization formalism, fixed-order perturbative calculations of color-octet mechanisms suffer from large perturbative and nonperturbative corrections that grow rapidly in the endpoint region, z → 1. In this paper, NRQCD and soft collinear effective theory are combined to resum these large corrections to the color-octet photoproduction cross section. We derive a factorization theorem for the endpoint differential cross section involving the parton distribution function and the color-octet J/{psi} shape functions. A one loop matching calculation explicitly confirms our factorization theorem at next-to-leading order. Large perturbative corrections are resummed using the renormalization group. The calculation of the color-octet contribution to d[sigma]/dz is in qualitative agreement with data. Quantitative tests of the universality of color-octet matrix elements require improved knowledge of shape functions entering these calculations as well as resummation of the color-singlet contribution which accounts for much of the total cross section and also peaks near the endpoint.
Book Synopsis J/psi Photo-production at Large Z in Soft Collinear Effective Theory by : Sean Fleming
Download or read book J/psi Photo-production at Large Z in Soft Collinear Effective Theory written by Sean Fleming and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the outstanding problems in J/{psi} physics is a systematic understanding of the differential photo-production cross section d{sigma}/dz({gamma} + p {yields} J/{psi} + X), where z = E{sub {psi}}/E{sub {gamma}} in the proton rest frame. The theoretical prediction based on the non-relativistic QCD (NRQCD) factorization formalism has a color-octet contribution which grows rapidly in the endpoint region, z {yields} 1, spoiling perturbation theory. In addition there are subleading operators which are enhanced by powers of 1/(1-z) and they must be resumed to all orders. Here an update of a systematic analysis is presented. The approach used to organize the endpoint behavior of the photo-production cross section is based on a combination of NRQCD and soft collinear effective theory. While a final result is not yet available, an intermediate result indicates that better agreement between theory and data will be achieved in this framework.
Book Synopsis New Trends in HERA Physics 1999 by : G. Grindhammer
Download or read book New Trends in HERA Physics 1999 written by G. Grindhammer and published by Springer Science & Business Media. This book was released on 2000-04-01 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experts on elementary-particle physics, both theorists and experimentalists, met to present their latest results on the various aspects of HERA physics, specifically, the H1 and ZEUS collaborations at HERA and the collaborations at LEP and the Tevatron were presented. The topics included: proton structure function; polarized ep scattering; final states in deep-inelastic scattering (DIS), with special emphasis on jet production at low x, power corrections in DIS, soft particle production, and instanton effects; photon structure function; photoproduction of jets and hadrons; heavy-flavour and charmonium production; elastic and diffractive ep scattering; and new physics at HERA.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 2003 Graduate Programs in Physics, Astronomy, and Related Fields by : American Institute of Physics
Download or read book 2003 Graduate Programs in Physics, Astronomy, and Related Fields written by American Institute of Physics and published by . This book was released on 2002 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive compendium provides information on nearly every U.S. doctoral program in physics and astronomy, plus data on most major master's programs in these fields. Information on many major Canadian programs is also included. In addition, the Graduate Programs directory lists a substantial number of related-field departments, including materials science, electrical and nuclear engineering, meteorology, medical and chemical physics, geophysics, and oceanography. This twenty-seventh annual edition contains information valuable to students planning graduate study and faculty advisors, including each program's research expenditures and sources of support. A number of helpful appendices make navigating the directory a simple task.
Download or read book Color-octet J written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monte Carlo Generators for HERA Physics by : A. T. Doyle
Download or read book Monte Carlo Generators for HERA Physics written by A. T. Doyle and published by . This book was released on 1999 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: